.container {
  margin-top: 200px;
  margin-left: auto;
  margin-right: auto;
  width: 50%;
}
.head {
  position: relative;
  cursor: pointer;
  color: #ffffff;
  padding: 10px;
  background: cornflowerblue;
}
.title {
  text-align: center;
  padding: 7px;
  font-size: 20px;
}
.content {
  color: gray;
  word-break: break-all;
  padding: 5px;
}
.content-box {
  box-sizing: 1px 1px gray;
  border-radius: 0px 0px 5px 5px;
  border: 1px solid #80808054;
  box-shadow: 0px 2px grey;
}
.head-after {
  right: 10px;
  position: absolute;
  top: 45%;
  border-width: 9px;
  border-style: solid;
  border-color: #fff transparent transparent transparent;
}
.content-box {
  overflow: hidden;
  transition: all 1s;
  height: 0px;
}
.other {
  overflow: hidden;
  transition: all 1s;
}
